Ishihara book consists of a number of colored plates to provide color blindness test on each plate is printed a circle made of many different sized dots of slightly different colors, spread in a random manner. Within the dot pattern and differentiated only by color is a more...
Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. Makesmore...
Ishihara’s color perception test charts are recognized internationally as highly reliable method of determining color deficiency. With normal color perception, the images and numbers will all be visible. Each color test plate in this hard bound. • Book is specially printed tomore...